Connectivity problem

Its about 5th or 6th time in last 6 months that some of my application in my BlackBerry z3, says that there is no internet connectivity. Due to them i have to send my phone to customers care and every time they restore my phone, all my data gets lost.
Please help me, tell me how to get over this problem

So it might just be your Carriers fault...also - does it only happen with Android applications? Do you use the latest BlackBerry OS version? I don't think it's necessary to send in your phone and even if the case you can always do a backup with Link.

As the Marshall said, it's vibes, cricbuzz, hike, vine..
I'm just clueless as to what to do..
And Co incidentally my os was also updated few days back, may be a month.. this problem is pestering me since then..!!!

The apps you mentioned are all Android apps so it seems the problem can be isolated. According to store reviews you are not alone and others have difficulties connecting over mobile network too. It’s the developers job to either tune their Android port to work or port to BlackBerry. You should blame them, not BlackBerry. In general you should rather use native versions/substitutes like BBM, WhatsApp, Kloudmix, Whine and so on. I myself tend to avoid Android for the most part.